Sixty-eight patients with subarachnoid haemorrhage (SAH) who were admitted in a comatose state were studied to determine the factors influencing mortality and to seek criteria for case management. Overall, the functional recovery (good recovery or moderate disability) rate was 33%, with a mortality rate of 50%. Bilaterally unreactive pupils on admission was a powerful predictor of death (p < 0.0001): outcome of these patients was poor regardless of any treatment modalities with a mortality rate of 91% (20/22). Initial poor motor response (abnormal flexion, extension, or nil) was also significantly related with death (p < 0.05). However, motor response was a less powerful predictor than pupillary reactivity. Motor response often altered spontaneously during the 12 h after admission, whereas pupillary reactivity tended to be stable. Initial reactive pupils were shown to be an indicator of spontaneous improvement of motor response. These findings indicate that pupillary reactivity may be a reliable predictor of outcome in poor-grade SAH patients.
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